如何在标题画面中读档只读第一个档？ - Project1

for i in 0..3
   if FileTest.exist?("Save#{i+1}.rxdata")
      @continue_enabled = true
   end
end

   if FileTest.exist?("Save1.rxdata") #只判断第一个存档是否存在
      @continue_enabled = true
   end

  def command_continue
# 继续无效的情况下
unless @continue_enabled
   # 演奏无效 SE
   $game_system.se_play($data_system.buzzer_se)
   return
end
# 演奏确定 SE
$game_system.se_play($data_system.decision_se)
# 切换到读档画面
$game_temp = Game_Temp.new
file = File.open("Save1.rxdata", "rb")
read_save_data(file)
file.close
# 还原 BGM、BGS
$game_system.bgm_play($game_system.playing_bgm)
$game_system.bgs_play($game_system.playing_bgs)
# 刷新地图 (执行并行事件)
$game_map.update
# 切换到地图画面
$scene = Scene_Map.new
  end
def read_save_data(file)
# 读取描绘存档文件用的角色数据
characters = Marshal.load(file)
# 读取测量游戏时间用画面计数
Graphics.frame_count = Marshal.load(file)
# 读取各种游戏对像
$game_system       = Marshal.load(file)
$game_switches    = Marshal.load(file)
$game_variables    = Marshal.load(file)
$game_self_switches = Marshal.load(file)
$game_screen       = Marshal.load(file)
$game_actors       = Marshal.load(file)
$game_party       = Marshal.load(file)
$game_troop       = Marshal.load(file)
$game_map          = Marshal.load(file)
$game_player       = Marshal.load(file)
# 魔法编号与保存时有差异的情况下
# (加入编辑器的编辑过的数据)
if $game_system.magic_number != $data_system.magic_number
   # 重新装载地图
   $game_map.setup($game_map.map_id)
   $game_player.center($game_player.x, $game_player.y)
end
# 刷新同伴成员
$game_party.refresh
  end